7 lines (6 with data), 248 Bytes

f215a 0 128 0 12:05:00 11/03/1988
# Start time=12:05
# First beat=12:20:44.835
# <age-range>: 75-79, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.593,  <RR-high-limit(sec)>: 1.109
# Note: reel-to-reel recording, not flutter-compensated